Pin and guide for molding-flasks.



Patelfa sepn'l, 1903.

upmoulou H Lnn AUG. 111907.

J RosT K PIN AFD GUIDE POB HOLDING lILASKS.

62mm, y J Z a3 aiwnm akkus,

runs cn. summum". n. a

'JULIUs'nos'ig or nu'wAuKEi-i, wI'sCoNsIX.

PIN AND GUIDE non noLnniG- FLAsKs Specification of Letters Patent.

resented sept. 15,1908.

Applicaton led August 17, 1907. Serial No. 389,012.

in` the county of Milwaukee and State of Wis-l consin, have invented new and useful Improvements in Pins and Guides for Molding- Flasks, of which the following is a specification.

This invention relates to molders flasks, and more particularly to im rovcments in a pin and guide for insuring t ie roper registering of the cope and drag of t ie mold and for effectively preventing wabbling.

The invention has for one of its object-s to improve and simplify the construction of devices of this character so as to be comparatively easy and inexpensive to manufacture, readily applied to flasks of ordinary construction and designed to facilitate the manipula.- tion of the mold sections and insure better castings.

A further object of the invention is the provision of a pin and guide for flasks in `which the guide is )rovided with an adjustable pin engaging slide or hearing piece and in which the pin is capable of vert-ical adj ustment for lengthening or shortening the pin to suitl the work in the flask, the parts being so designed as to insure the propel' registering of the cope with the drag and permit of ready adjustment.

YWith these object-s in view and others, as will appear as the description proceeds, the invention comprises the various novel features of construction and arrangement of arts which will be more fully described heremafter and set forth with particularity in the 'claims appended hereto.

In the accompanyinor drawing, which illustrates one of the enibodiments of the invention, Figure 1 is a side view of a flask with the guide and pin applied thereto. Fig. 2 is a plan view of the device. Fig. 3 is a section of the guide. Y Fig. 4 is a vertical section on line 4 4, Fig. 2. Fig. 5 is a plan view of the pin and holder therefor. Fig. 6 is a side view of the adjustable bearingplece mounted in the guide.

Similar reference characters are employed to designate corresponding parts throughout the several views.

Referring to the drawing, A designates the (bag and B, the co e of the flask, which may be of any approve construction and design.

ally b v consists -of a socketed holder I manner and in the socketed portion 2 thereof 1s an extension pm 3. 'lhls pin is preferably of round cross section and is vertically adjustable in the socket 2 and clamped in position b v a set Ascrew 3. By this means, the pin can be raised Aor lowered to any desired position to suit the work to be done. On the cope B is a guide 4 that comprises a suitably shaped casting that is provided with a chamber 5 and a recess 6 communicating with the chambers, the said recess serving to receive the pin 3. As shown in 1, the upper lend of the extension pin 3 is tapered so as to facilitate the removal and place ofthe cope, and the in may be steel, brass, cold rolled iron or t 1e like. lower 7 that has at its inner end a semi-circular bearing piece for engagement with the extension pin 3. The slide or follower 7 is provided with teeth 9 that mesh with a worm 10 whereby the slide can be moved inwardly or outwardly. The worm 10 is arranged in the chamber 5 and mounted to rotate in bearings 11, there being a slotted head 12 on the outer end of the work for permitting the latter to be turned with the screw driver. In order to hold the follower in fixed position after being adjusted, a set screw 13 is provided which extends through one of the walls of the chamber 5 and binds at its inner end on the follower. By means of the construction described, the parts can be readily and conveniently adjusted to roper registering of the sections of the flas so as to insure perfect castings, and furthermore there can be no wabbling of the parts since the slides of the flask can be moved by the worm to firmly grip the extension pins 3.

W'hile I have shown and described the invention in connection with a bench or box flask, it is obvious that it may be used with equal benefits on floor flasks.

From the. foregoing description, taken in connection with the accompanying drawings, the, advantages of the construction and of the method of operation will be readily apparent to those skilled in the art to which the invention appertains, and while I have described the principle of operation of the in- UNITED STN-WENT OFFICE.

that is secured to the dragA in any suitable In the housing is a slide or folvention, together with the device which I now consider to be4 the best embodiment thereof, I desire to have it understood that (55 .The pin and guide device designated generthe apparatus shown is merely illustrative 110 v be mad'when de;

and siieh changes ma .sil-ed, as are within the scope of the claims.

Having thus described t he invention, what I Claim is 1. In a flask, the combination of a pin, a

holder' having a soeketin which the pin is longitudinally movable, a set holder for securing the pin in place, a guide Y provided with a recess for receiving the pin,

a. member slidably mounted on the guide and having a portion disposed in the recess for engaging the pin, teeth on the member, a worm on the guide and engaging the teeth for moving the member, and bearings on the guide in which the worm is Vheld against longitudinal movement.

2. In a flask, the combination of a pin, a holder therefor, means for clamping the )in in the holder, a. guide, a follower mounted in 0 the guide, a semi-circular member on the fols9s,929 f i I g with the teethfor gaging the pin, means in the chamber forv moving the said member, and a device for clamping the member in fixed position.

In testimony whereof, I aflix my signature in presence of two witnesses. Y

lJULIUs Ros'r.v

Witnesses:

. W. SPLrrT,

lower for engaging the pin, teeth on the fol- WELI'ss K. GREGG. 

